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Rails provides several really useful test helpers for ActionMailer so we can quickly iterate on our design, test that our code queues up the right emails, and make sure our emails contain the right content.
Testing ActionCable authentication with Devise is pretty easy, especially when we build our own helpers to stub out Warden
Today we're refactoring Andrew Mason's GitHub Action that runs Rubocop against your repository. We'll pull out some concepts, remove conditionals, and use several other techniques to clean up the code.
Test suites often become brittle over time where small changes end up breaking various tests. One way to avoid that is by avoiding using hardcoded values in your test suite.
Test stubs are very handy when you want to mock out the response to a method call. This allows your tests to be more reliable and skip long running or unnecessary method calls.
Dependency Injection is a common technique for making your code more flexible and testable by removing strict dependencies upon other classes, modules, and other types of dependencies in your code
Mocks are a handy tool for writing tests in Ruby. You can use them to fake an object and verify that the correct methods were called against it. Perfect for testing a method that integrates closely with another class or module.
Ever wanted an editor and Rails environment you can use anywhere? Cloud9 is the perfect option for this and can run on an EC2 instance in your AWS account.
Learn how to implement Uppy as a frontend for uploading files via drag and drop, paste, URL, Google Drive, Dropbox, webcam and more to Active Storage in Rails
We can use timestamps in our database to track of online users in your Rails
If we want to add realtime tracking of which users are online, we can use active websocket connections through ActionCable to keep track.
Learn how to test ActiveStorage file uploads and create fixtures with ActiveStorage attachments
This series walks through the entire process of building a Ruby on Rails app from start to finish. We'll be building AnimatedGif.me for saving and sharing animated gifs as easily as possible.
File uploads in Rails with Shrine make it easy to upload and customize how files get uploaded and processed in Rails
Testing file uploads can be tricky, but Shrine makes both file uploading and testing a lot easier than you might expect.
A getting started guide on the Pay gem for accepting payments in Rails
Learn how to implement Google Maps and the Google Places Autocomplete API in Rails compatible with Turbolinks using StimulusJS
Webpacker provides some nice tools for loading Javascript in several different ways. We're looking at require.context to see how to load an entire directory's set of files easily.
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